<!DOCTYPE html>
<html lang="zh">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Template</title>
    <link rel="stylesheet" href="Bootstrap/css/bootstrap.css">
    <!-- <link rel="stylesheet" href="bootstrap/css/bootstrap-icons.css" type="text/css"> -->
    <style>
        .gap {
            width: 300px;
            border: 1px solid blue;
        }
    </style>
</head>

<body>
    <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#exampleModal">
        Launch demo modal
    </button>

    <!-- Modal -->
    <div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                </div>
                <div class="modal-body">
                    ...
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                    <button type="button" class="btn btn-primary">Save changes</button>
                </div>
            </div>
        </div>
    </div>
    <script src="js/jquery.min.js"></script>
    <script src="Bootstrap/js/bootstrap.bundle.js"></script>
    <script src="js/holder.js"></script>
</body>

</html>